Speaker
Description
Tanks of liquid xenon are used in many present and upcoming dark matter direct detection experiments. As shielding these detectors from neutrinos is impossible, it is necessary to know the scattering cross sections of neutrinos with the detector material. The lack of measured cross sections necessitates theoretical methods. Here we provide the charged-current scattering cross sections for the target nuclei Xe-129 and Xe-131. Such calculations have already been done before, but the effect of the meson-exchange two-body currents on the cross sections has thus far never been studied. We here include these for the first time and compare our results to a one-body-currents-only model where the quenching of the weak axial coupling constant was dealt with phenomenologically.